Door for vehicles for removing house refuse



April 1, 1930. P. SCHUBERTH DOOR FOR VEHICLES FOR REMOVING HOUSE REFUSE2 Sheets-Sheet 1 Filed June 1927 [val/enter: e M

April 1930. P. SCHUBERTH 1,753,135

DOOR FOR VEHICLES FOR REMOVING HOUSE REFUSE Filed June 1927 2Sheets-Sheet 2 In Wanton- PM JflW Patented Apr. 1, 1930 UNITED STATESPAUL SCHUBERTH, OF AUGSIBURG, GERMANY DOOR FOR VEHICLES FOR REMOVINGHOUSE REFUSE Application filed June 1, 1927, Serial No. 195,643, andiii-Germany October 21, 1926.

This invention relates to a door for a motor driven vehicle for heapablematerial, specially designed for removing house-refuse and comprising adrum, rotatably mounted on said vehicle, closed at the front end andopen at the rear end, said drum being subdivided into longitudinal,helical compartments by helical sheet-iron-plates between the innersurface of the drum and the shaft so that the material, charged into thedrum at the rear end, travels towards the front portion of said drumwhen the drum is rotating in clockwise direction but is discharged atthe rear end when the direction of rotation of said drum is reversed asdescribed in my patent application Serial No. 195,418 filed May 31st,1927.

The charging of the heapable material is done through an aperture of alid which closes the open rear end of said drum, said lid being adaptedto be fixed in its position in order that the heapable material can becharged into the drum during the rotation of said drum as described inmy parent patentapplication. This invention has for its object toimprove the construction of the rear portion of the vehicle and of thedrum, especially the lid, for the purpose of ensuring an almostdust-free filling-in of the material and a dust-proof packing of the lidon the open end of the drum and further to facilitate the opening andclosing of the lid and to accelerate the stopping of the drum whendisturbances should occur at the charging point.

A vehicle, according to the invention is shown, by way of example, inthe accompanying drawing, in which:

Fig. 1 shows in longitudinal section, partly in side elevation, the lidin two different positions.

Fig. 2 is a top plan view of the vehicle frame.

Fig. 3 shows the lid in elevation.

Fig. 4 shows on larger scale in longitudinal elevation part of thepacking of the lid with regard to the drum.

Fig. 5 shows on larger scale in longitudinal section part of the packingof the lid in another form of construction.

The drum 1 mounted on the vehicle frame,

at the front end by means of a ball-headed bolt 23 and at the rear endon rollers 20, is driven from the vehicle-motor 7 by a changewheel gear6, adapted to be controlled by a fork 8 and by a rod 9, in the one orother directlon of rotation i. e. at the charging of the heapablematerial in right hand direction and at the emptying of the drum in lefthand direction. The front end of the drum is closed and the rear end ofthe same is open. The inner space of the drum is subdivided into helicalcompartments by sheet-metal plates 5 which are fixed at the one edge tothe inner surface of the drum and at the other edge to the shaft 3 andextend in helical shape over the entire length of the drum. When saiddrum is rotating in clockwise direction, the heapable material pushedforward by the sheet-metal-plates 5 travels towards the front end of thedrum and when the drum is rotating in anticlockwise direction, thematerial travels towards the rear end of the drum. A horseshoe-shapedframe composed of two U- irons 11 and 12 is fixed on the vehicle-frame,surrounds the drum and carries the supporting rollers 20 for the rearend of the drum. This frame carries further at its upper portion asheet-iron-sector 13 on which the lid 10 is suspended by means of ahinge 14. The lid has on its inner side a concentric conical extension16 having a bottom 18 and projecting into the drum when said lid is inthe vertical position. The helical sheet-metalplates 5 are cut out attheir ends so that only narrow tongues 19 remain, which project into theannular space surrounding the conical extension 16 of the lid and whichserve to lift, at the rotation of the drum, the material which has beenfilled into the drum and to conduct the same into the helicalcompartments of said drum. The heapable material is charged into thedrum through an aperture 17 in the lower portion of the conicalextension 16 of the lid.

In order to prevent the material from collecting in the lower portion ofthe drum and to prevent material dropping from the right into this lowerportion of the drum, the wall of the conical extension 16 of the lid hasat the right edge of the charging aperture 17 a tangential flange 25(Fig. 3)' which extends in radial distance from the shaft so far thatthe tongues 19 of the helical plates in the drum can just pass alongsaid flange. The lower edge of the flange 25 is connected with the righthand edge of the aperture 17 by a wall 26.

The tongues 19'of the helical plates 5 carry underneath the flange 25the filled-in material to the left so that in this material, at the leftside of the flange 25, a cavity is formed as soon as one of the tongues19 passes over the heap of materal. In this manner an excessive fillingof the drum underneath the charging hole is prevented.

Material which has been carried along by the tongues 19 and which partlydrops back from above, is retained at the right side of the chargingaperture by the tongues 19 of the plates 5 and by the flange 25.

The rear side of the lid has a frame-shaped heightened portion 27 inwhich an aperture 28 is cut out. The upper portion of frame 27 projectsslightly forward and to the lower edge of aperture 28 a door 30 issuspended by means of a hinge 29-which door has a tendency to adjustinto the perpendicular position by gravity and to bear onto the innerside of the edge of the aperture. When the. heapable material is broughtfrom a dust-k bin 31 into the drum, the dust-bin is pushed against thedoor 30 and this door is thus swung into the position shown in dot-linesin Fig. 1. As soon as the dust-bin 31 is removed, the door drops backinto the closing position. On the inner side of the lower edge of theaperture of the heightened portion 27 two supports 32 are arranged onwhich the dust-bin 31 can be placed for emptying.

On the inner side of lid 10 a packing with regard to the edge of thewall of the drum is arranged. This packing consists of a ring-shapedstrip 33 of leather, spring-metal or other material, the outer ed e ofwhich is fixed to the inner side of the li by means of a flat-iron-ring34 (Fig. 4). Under the ringshaped strip 33 in the fixed portion of thesame a ring 35 is inserted which has an inclined pressing surface and isfixed on the lid. This ring 35 serves to push the ringshaped strip 33away from the surface of the lid so that its end is bent towards theedge of the drum. At the end of drum 1 a sliding ring 36 is fixed onwhich bears the inner edge of the packing-ring 33. In this manner aZ-shaped cross section and an elastic effect are given to thepacking-ring. By means of screws in the lid and designed to strikeagainst abutments on the vehicle-frame the height of the packing-ringand consequently the packing-pressure of the same can be determined atwill.

The resilient effect of the packing-ring may be increased by pushing arubber-ring 38 under the ring-shaped packing strip 37,

as shown in Fig. 5. This rubber ring is pressed on the packing strip bya ring 39 of angular cross section. The sllding ring on the drum mayhave a flange 40 projecting over the edge of the drum the packing-ring37 gripping under this flange in order to prevent material droppingunder said packing-ring.

Two rods 41 and 42, hingedly mounted on the lower portion of the lid ontwo bars 43, 44 fixed to said lid, serve for opening and closing the lidand they are connected with a transverse rod 45 mounted on ascrew-spindle 46 so that it can be displaced. On the outer end of thisscrew spindle 46 a bevelwheel 47 is fixed with which meshes a bevelwheel48 fixed on the end of a crank-handle 49. By rotating the crank-handle49 the lid can be lifted in outward direction in order to empty thedrum, as indicated in Fig. 1 in mixed lines.

Underneath the lid a pedal-lever 50 is mounted on the vehicle-frame andconnected with a rod 51 which leads to the changewheel gear 6 whichdrives the drum. The rod 51 is controlled by a spring 52 which has thetendency to pull this rod forward. At the front end of rod 51 a catch 53is fixed which grips behind the disengaging lever 54 of thechange-wheel-gear. When the pedallever 50 is released, rod 51 togetherwith the catch 53 moves back without drawing along the disengaging lever54. This disengaging lever 54 is fixed on the feed-rod and can bereadjusted from the drivers seat, independently of the pedal 50, bymeans of the handlever 8.

I claim 1. In power driven vehicles for removing house refuse,comprising a rotatable drum, a lid suspended, so that it bears againstthe rear open end of said drum, a conical projection on said lid, anouter closing wall on said lid forming a closed hollow space in the saidconical projection of said lid and having an aperture, a door suspendedin said aperture so that it can be pressed into said hollow space in thelid, packing means on the lid packing said lid with regard to the edgeof the open drum end, and means for pressing said lid against the edgeof the drum and for removing said lid from the drum edge at the emptyingof said drum.

2. In power driven vehicles for removing house refuse, comprising arotatable drum, a lid suspended, so that it bears against the rear openend of said drum, a conical projection on said lid, an outer closingwall on said lid forming a closed hollow space in the said conicalprojection of said lid and having an aperture, a door suspended insaidaperture so that it can be pressed into said hollow space in thelid, a packing ring on the inner side of said closing wall of the lid, asliding ring on the rear end of said drum the outer edge of said packingring fixed on the lid and its inner edge turned towards said slidingri'n of said drum, means for raising the inner e go of said packingring, and means for pressing said lid against the open end of said drum.

3. In power driven vehicles for removing house refuse, comprising arotatable drum, a lid suspended, so that it bears against the rear openend of said drum, a conical rojection on said lid, an outer closing walon said lid forming a closed hollow space in the said conical projectionof said lid and having an aperture, a door suspended in said aperture sothat it can be pressed into said hollow space in the lid, a packing ringon the inner side of said closing wall of the lid, a sliding ring on therear end of said drum the outer edge of said packing ring fixed on thelid and its inner edge turned towards said sliding ring of said drum, anelastic ring under sald packing ring forcing the inner edge of saidpachng rin to assume an inclined position with regar to said sliding rinon the edge, a profiled ring on sai elastic rin pressing said elasticring under said padlxing ring, and means for pressing said lid againstthe open end of said drum.

4. In ower driven vehicles for removing house re lse, comprising arotatable drum, a lid suspended, so that it bears against the rear openend of said drum, a conical projection on said lid an outer closing wallon said lid forming a closed hollow space in the said conical projectionof said lid and having an aperture a door suspended in said aperture sothat 1t can be pressed into said hollow space in the lid, a packing ringon the inner ends of said closing wall of the lid, a sliding ring on therear end of said drum the outer edge of said packing ring fixed on thelid and its inner edge turned towards said sliding ring of said drum,means for raising the inner edge of said pachng v position with regardto said sdmg ring on said pushing rods gedly connected to the lower endof said lid, a spindle, a yoke screwed on said spindle, and a drivingcrank for said s indie or moving said push rods and said hi towards saidd or away from the same.

Ila testimony whereof I afix my siature.

PAUL SCHUBETH,

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